. 2018 Oct 2;2018:3640691. doi: 10.1155/2018/3640691

Table 6.

Efficiency of standard ODS cartridge (Supelco) in adsorption of different pesticides using SPE technique.

Pesticides	Removal efficiency (%) ± SE at three levels of concentration (mg/L)			Active ingredient found in water (%) ± SE			Total found (%)^∗ ± SE
	(Extracted in methanol / acetonitrile)			(Remaining in water sample)			Total found (%)^∗ ± SE
	10	50	100	10	50	100	10	50	100
Abamectin	97.59^a ± 2.51	95.4^a4 ± 0.48	48.11^c ± 0.17	00.00^e ± .00	4.28^e ± 0.43	11.86^d ± 0.65	97.59^a ± 2.51	99.72^a ± 0.45	59.97^c ± 0.34
Diazinon	99.36^a ± 2.05	96.28^a ± 0.43	87.65^a ± 0.28	00.00^e ± 0.00	2.00^f ± 0.04	7.45^e ± 0.67	99.36^a ± 2.05	98.32^a ± 0.42	95.10^a ± 0.47
Fenamiphos	84.20^b ± 3.04	78.28^b ± 0.46	78.60^b ± 0.41	14.45^a ± 0.65	16.54^b ± 0.29	16.96^c ± 0.25	98.65^a ± 1.84	94.82^a ± 0.56	95.56^a ± 0.45
Imidacloprid	80.16^b ± 1.03	51.26^c ± 0.45	31.20^d ± 1.19	8.11 ± ^d0.11	13.90^c ± 0.14	36.84^a ± 0.23	88.27^a ± 0.98	65.16^c ± 0.34	68.04^b ± 0.71
Lambda-cyhalothrin	93.88^a ± 1.21	72.05^b ± 2.46	51.70^9c ± 0.55	00.00^e ± .00	7.42^d ± 0.34	10.64^d ± 0.65	93.88^a ± 1.21	79.47^b ± 1.49	62.43^b ± 0.60
Methomyl	40.37^d ± 0.63	28.20^d ± 0.46	23.35^d ± 1.08	11.87^c ± 0.87	13.99^c ± 0.87	22.98^b ± 0.98	52.24^b ± 0.76	42.19^d ± 0.63	46.33^d ± 0.96
Thiophanate-methyl	78.98^c ± 4.26	75.30^b ± 0.40	74.28^b ± 0.22	13.07^b ± 0.00	19.65^a ± 0.65	24.67^b ± 0.83	92.05^a ± 4.26	94.95^a ± 0.53	98.95^a ± 0.52

∗ The values lower than 100% mean the nonextracted amount of pesticide from standard solid phase extraction cartridge. Values are mean of three replicates and are given as mean ± standard error. Different letters in the same column indicate significant differences according to Student-Newman-Keuls (SNK) test (P≤0.05).